X+2X-2-7=5X+20

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Solution for X+2X-2-7=5X+20 equation:


Simplifying
X + 2X + -2 + -7 = 5X + 20

Reorder the terms:
-2 + -7 + X + 2X = 5X + 20

Combine like terms: -2 + -7 = -9
-9 + X + 2X = 5X + 20

Combine like terms: X + 2X = 3X
-9 + 3X = 5X + 20

Reorder the terms:
-9 + 3X = 20 + 5X

Solving
-9 + 3X = 20 + 5X

Solving for variable 'X'.

Move all terms containing X to the left, all other terms to the right.

Add '-5X' to each side of the equation.
-9 + 3X + -5X = 20 + 5X + -5X

Combine like terms: 3X + -5X = -2X
-9 + -2X = 20 + 5X + -5X

Combine like terms: 5X + -5X = 0
-9 + -2X = 20 + 0
-9 + -2X = 20

Add '9' to each side of the equation.
-9 + 9 + -2X = 20 + 9

Combine like terms: -9 + 9 = 0
0 + -2X = 20 + 9
-2X = 20 + 9

Combine like terms: 20 + 9 = 29
-2X = 29

Divide each side by '-2'.
X = -14.5

Simplifying
X = -14.5

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